Ключевые слова: architecture, background, build, builder, business, cap, city, concrete, construction, damage, danger, employment, engineer, engineering, equipment, equipments, factory, floor, hard, hardhat, hat, hats, head, headgear, helmet, helmets, industrial, industry, inspection, job, life, maintenance, manufacturing, prevention, professional, project, protect, protection, safe, safety, security, site, tool, tools, wear, white, work, worker, workman, yellow,